/*
 * Copyright 2007 Stefan Arentz <http://stefan.arentz.nl>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.sateh.spaces.simple;

import com.sateh.spaces.simple.matcher.ObjectMatcher;

import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.TimeUnit;

public class SimpleSpaceObjectWaiter
{
    public static final int READER = 0;
    public static final int TAKER = 1;

    public SimpleSpaceObjectWaiter(ObjectMatcher matcher, int type)
    {
        this.matcher = matcher;
        this.type = type;
    }

    private final ObjectMatcher matcher;

    public ObjectMatcher getMatcher()
    {
        return matcher;
    }

    private final int type;

    public int getType()
    {
        return type;
    }

    private final BlockingQueue<SimpleSpaceObject> queue = new ArrayBlockingQueue<SimpleSpaceObject>(1);

    public void put(SimpleSpaceObject object)
    {
        try {
            queue.put(object);
        } catch (InterruptedException exception) {
            // Ignored
        }
    }

    public SimpleSpaceObject poll(long timeout)
    {
        try {
            return queue.poll(timeout, TimeUnit.MILLISECONDS);
        } catch (InterruptedException exception) {
            return null;
        }
    }
}
